public void DoHmux(HttpContext context)
{
Socket hmuxSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
hmuxSocket.Connect("localhost", 6810);
HmuxChannel channel = new HmuxChannel(hmuxSocket);
channel.StartChannel();
channel.RelayUri(context.Request.RawUrl);
channel.RelayHttpMethod(context.Request.HttpMethod);
channel.RelayHeaders(context.Request.Headers);
channel.RelayServerVariables(context.Request);
channel.RelayRequestBody(context.Request);
channel.MarkQuit();
//channel.WriteExit();
channel.FlushBuffer();
channel.DoResponse(context);
//byte []buffer = new byte[1024];
//int x = channel.Read(buffer);
//context.Response.OutputStream.Write(buffer, 0, x);
/** hmuxSocket.FlushBuffer(
cse_write_byte(hmuxSocket, HMUX_CHANNEL);
cse_write_byte(hmuxSocket, channel >> 8);
cse_write_byte(hmuxSocket, channel);
cse_write_string(hmuxSocket, HMUX_URL, uri);
write_var(hmuxSocket, r, "REQUEST_METHOD", HMUX_METHOD);
write_var(hmuxSocket, r, "SERVER_PROTOCOL", CSE_PROTOCOL);
// write_var(hmuxSocket, r, "PATH_TRANSLATED", CSE_PATH_TRANSLATED);
write_var(hmuxSocket, r, "QUERY_STRING", CSE_QUERY_STRING);
write_var(hmuxSocket, r, "SERVER_NAME", HMUX_SERVER_NAME);
write_var(hmuxSocket, r, "SERVER_PORT", CSE_SERVER_PORT);
write_var(hmuxSocket, r, "REMOTE_HOST", CSE_REMOTE_HOST);
write_var(hmuxSocket, r, "REMOTE_ADDR", CSE_REMOTE_ADDR);
write_var(hmuxSocket, r, "REMOTE_USER", CSE_REMOTE_USER);
write_var(hmuxSocket, r, "AUTH_TYPE", CSE_AUTH_TYPE);
cse_write_string(hmuxSocket, CSE_SERVER_TYPE, "ISAPI");
*/
}
//throws ServletException, IOException
private int HandleRequest(HttpRequest request,
HttpResponse response,
HmuxChannel hmuxChannel,
BufferedStream rs,
BufferedStream ws,
byte[] buf, int length, bool isComplete,
bool allowBusy)
{
String traceId = hmuxChannel.GetTraceId();
StringBuilder cb = new StringBuilder();
bool isDebugFiner = true;
String uri = Uri.EscapeUriString(request.RawUrl);
Trace.TraceInformation("Hmux[{0}] >>U:uri {1}->{2}", traceId, request.RawUrl, uri);
WriteRequestString(ws, HmuxChannel.HMUX_URI, uri, traceId);
Trace.TraceInformation("Hmux[{0}] >>m:method {1}", traceId, request.HttpMethod);
WriteRequestString(ws, HmuxChannel.HMUX_METHOD, request.HttpMethod, traceId);
Trace.TraceInformation("Hmux[{0}] >>u:server type {1}", traceId, "IIS");
WriteRequestString(ws, HmuxChannel.CSE_SERVER_TYPE, "IIS", traceId);
NameValueCollection serverVariables = request.ServerVariables;
String serverPort = serverVariables.Get("SERVER_PORT");
String serverName = serverVariables.Get("SERVER_NAME") + ':' + serverPort;
Trace.TraceInformation("Hmux[{0}] >>v:server name {1}", traceId, serverName);
WriteRequestString(ws, HmuxChannel.HMUX_SERVER_NAME, serverName, traceId);
Trace.TraceInformation("Hmux[{0}] >>g:server port {1}", traceId, serverPort);
WriteRequestString(ws, HmuxChannel.CSE_SERVER_PORT, serverPort, traceId);
String remoteAddr = serverVariables.Get("REMOTE_ADDR");
Trace.TraceInformation("Hmux[{0}] >>i:remote address {1}", traceId, remoteAddr);
WriteRequestString(ws, HmuxChannel.CSE_REMOTE_ADDR, remoteAddr, traceId);
String remoteHost = serverVariables.Get("REMOTE_HOST");
if (remoteHost == null)
remoteHost = remoteAddr;
Trace.TraceInformation("Hmux[{0}] >>h:remote host {1}", traceId, remoteHost);
WriteRequestString(ws, HmuxChannel.CSE_REMOTE_HOST, remoteHost, traceId);
String protocol = serverVariables.Get("HTTP_VERSION");
Trace.TraceInformation("Hmux[{0}] >>c:protocol {1}", traceId, protocol);
WriteRequestString(ws, HmuxChannel.CSE_PROTOCOL, protocol, traceId);
HttpClientCertificate clientCertificate = request.ClientCertificate;
if (request.IsSecureConnection) {
Trace.TraceInformation("Hmux[{0}] >>r:secure", traceId);
WriteRequestString(ws, HmuxChannel.CSE_IS_SECURE, "", traceId);
WriteRequestHeader(ws, "HTTPS", "on", traceId);
WriteRequestHeader(ws, "SSL_SECRETKEYSIZE", clientCertificate.KeySize.ToString(), traceId);
}
if (clientCertificate.IsPresent) {
Trace.TraceInformation("Hmux[{0}] >>r:certificate ({1})", traceId, clientCertificate.Certificate.Length);
ws.WriteByte(HmuxChannel.CSE_CLIENT_CERT);
WriteHmuxLength(ws, clientCertificate.Certificate.Length);
ws.Write(clientCertificate.Certificate, 0, clientCertificate.Certificate.Length);
}
NameValueCollection headers = request.Headers;
foreach (String key in headers.AllKeys) {
if ("Connection".Equals(key, StringComparison.OrdinalIgnoreCase))
continue;
String[] values = headers.GetValues(key);
foreach (String value in values) {
WriteRequestHeader(ws, key, value, traceId);
}
}
Stream requestStream = request.InputStream;
Stream responseStream = null;
bool hasHeader = true;
bool hasStatus = false;
if (length > 0) {
Trace.TraceInformation("Hmux[{0}] >>D: data ({1})", traceId, length);
WriteRequestData(ws, HmuxChannel.HMUX_DATA, buf, length, traceId);
}
int len;
int code;
while (!isComplete && (len = requestStream.Read(buf, 0, buf.Length)) > 0) {
Trace.TraceInformation("Hmux[{0}] >>D: data ({1})", traceId, length);
WriteRequestData(ws, HmuxChannel.HMUX_DATA, buf, len, traceId);
Trace.TraceInformation("Hmux[{0}] >>Y: (yield)", traceId);
ws.WriteByte(HmuxChannel.HMUX_YIELD);
ws.Flush();
while (true) {
code = rs.ReadByte();
if (code < 0) {
Trace.TraceInformation("Hmux[{0}] <<w: end of file", traceId);
if (hasStatus)
return OK | EXIT;
else {
Trace.TraceInformation("Hmux[{0}] <<w: unexpected end of file", traceId);
return FAIL | EXIT;
}
} else if (code == HmuxChannel.HMUX_QUIT) {
Trace.TraceInformation("Hmux[{0}] <<Q: (keepalive)", traceId);
if (hasStatus)
return OK | QUIT;
else {
Trace.TraceInformation("Hmux[{0}] <<Q: unexpected quit file", traceId);
return FAIL | QUIT;
}
} else if (code == HmuxChannel.HMUX_EXIT) {
Trace.TraceInformation("Hmux[{0}] <<X: (exit)", traceId);
if (hasStatus) {
return OK | EXIT;
} else {
Trace.TraceInformation("Hmux[{0}] <<X: unexpected exit", traceId);
return FAIL | EXIT;
}
} else if (code == HmuxChannel.HMUX_YIELD) {
Trace.TraceInformation("Hmux[{0}] <<Y: (yield)", traceId);
continue;
}
int sublen = ReadHmuxLength(rs);
if (code == HmuxChannel.HMUX_ACK) {
if (isDebugFiner)
Trace.TraceInformation("Hmux[{0}] <<A: (ack) ({1})", traceId, sublen);
break;
} else if (code == HmuxChannel.HMUX_CHANNEL) {
int channel = sublen;
Trace.TraceInformation("Hmux[{0}] <<C: (channel) ({1})", traceId, channel);
} else if (code == HmuxChannel.HMUX_STATUS && hasHeader) {
String status = ReadHmuxString(rs, sublen);
Trace.TraceInformation("Hmux[{0}] <<s: (status) ({1})", traceId, status);
int statusCode = 0;
for (int i = 0; i < 3; i++)
statusCode = 10 * statusCode + status[i] - '0';
if (statusCode != 200)
response.StatusCode = statusCode;
hasStatus = true;
} else if (code == HmuxChannel.HMUX_HEADER && hasHeader) {
String name = ReadHmuxString(rs, sublen);
rs.ReadByte();
sublen = ReadHmuxLength(rs);
String value = ReadHmuxString(rs, sublen);
Trace.TraceInformation("Hmux[{0}] <<H,S: (header) ({1}={2})", traceId, name, value);
RelayResponseHeader(response, name, value);
} else if (code == HmuxChannel.HMUX_DATA) {
Trace.TraceInformation("Hmux[{0}] <<D: (data)({1})", traceId, sublen);
if (responseStream == null)
responseStream = response.OutputStream;
RelayResponseData(rs, responseStream, sublen);
} else if (code == HmuxChannel.HMUX_META_HEADER) {
String name = ReadHmuxString(rs, sublen);
rs.ReadByte();
sublen = ReadHmuxLength(rs);
String value = ReadHmuxString(rs, sublen);
Trace.TraceInformation("Hmux[{0}] <<M,S: header ({1}={2})", traceId, name, value);
if ("cpu-load".Equals(name)) {
double loadAvg = 0.001 * long.Parse(value);
hmuxChannel.GetPool().SetCpuLoadAvg(loadAvg);
}
} else {
Skip(rs, sublen);
}
}
}
ws.WriteByte(HmuxChannel.HMUX_QUIT);
ws.Flush();
code = rs.ReadByte();
// #2369 - A slow modem can cause the app-tier and web-tier times
// to get out of sync, with the app-tier thinking it's completed
// (and starts the keepalive timeout) 30s before the web-tier reads
// its data.
// As a temporary measure, we start the idle time at the first data
// read (later we might mark the time it takes to read an app-tier
// packet. If it's short, e.g. 250ms, don't update the time.)
hmuxChannel.SetIdleStartTime(DateTime.Now.Ticks);
bool isBusy = false;
for (; code >= 0; code = rs.ReadByte()) {
if (code == HmuxChannel.HMUX_QUIT) {
if (isDebugFiner)
Trace.TraceInformation("Hmux[{0}] <<Q: (keepalive)", traceId);
return isBusy ? BUSY | QUIT : OK | QUIT;
} else if (code == HmuxChannel.HMUX_EXIT) {
Trace.TraceInformation("Hmux[{0}] <<X: (exit)", traceId);
return (isBusy || !hasStatus) ? BUSY | EXIT : OK | EXIT;
} else if (code == HmuxChannel.HMUX_YIELD) {
Trace.TraceInformation("Hmux[{0}] <<Y: (yield)", traceId);
continue;
}
int sublen = (rs.ReadByte() << 8) + rs.ReadByte();
if (code == HmuxChannel.HMUX_DATA) {
if (responseStream == null)
responseStream = response.OutputStream;
Trace.TraceInformation("Hmux[{0}] <<D: (data)({1})", traceId, sublen);
if (!isBusy)
RelayResponseData(rs, responseStream, sublen);
else
Skip(rs, sublen);
} else if (code == HmuxChannel.HMUX_STATUS && hasHeader) {
hasStatus = true;
String status = ReadHmuxString(rs, sublen);
Trace.TraceInformation("Hmux[{0}] <<s: (status) ({1})", traceId, status);
int statusCode = 0;
for (int i = 0; i < 3; i++)
statusCode = 10 * statusCode + status[i] - '0';
if (statusCode == 503 && allowBusy)
isBusy = true;
else if (statusCode != 200)
response.StatusCode = statusCode;
} else if (code == HmuxChannel.HMUX_HEADER && hasHeader) {
String name = ReadHmuxString(rs, sublen);
rs.ReadByte();
sublen = ReadHmuxLength(rs);
String value = ReadHmuxString(rs, sublen);
Trace.TraceInformation("Hmux[{0}] <<H,S: (header) ({1}={2})", traceId, name, value);
if (!isBusy)
RelayResponseHeader(response, name, value);
} else if (code == HmuxChannel.HMUX_META_HEADER) {
String name = ReadHmuxString(rs, sublen);
rs.ReadByte();
sublen = ReadHmuxLength(rs);
String value = ReadHmuxString(rs, sublen);
Trace.TraceInformation("Hmux[{0}] <<M,S: header ({1}={2})", traceId, name, value);
if ("cpu-load".Equals(name)) {
double loadAvg = 0.001 * long.Parse(value);
hmuxChannel.GetPool().SetCpuLoadAvg(loadAvg);
}
} else if (code == HmuxChannel.HMUX_CHANNEL) {
int channel = sublen;
Trace.TraceInformation("Hmux[{0}] <<C: (channel) ({1})", traceId, channel);
} else if (code == 0) {
Trace.TraceInformation("Hmux[{0}] <<0: unknown code (0)", traceId);
return FAIL | EXIT;
} else {
Trace.TraceInformation("Hmux[{0}] <<?: unknown code ({1})", traceId, code);
Skip(rs, sublen);
}
}
Trace.TraceInformation("Hmux[{0}] end of file", traceId);
// server/269q
if (hasStatus)
return isBusy ? BUSY | EXIT : OK | EXIT;
else {
Trace.TraceInformation("Hmux[{0}] unexpected end of file", traceId, code);
return FAIL | EXIT;
}
}
public HmuxChannel OpenServer(String sessionId, HmuxChannelFactory xChannelFactory)
{
HmuxChannel channel = OpenRecycle();
if (channel != null)
return channel;
Socket hmuxSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
hmuxSocket.Connect(_address, _port);
channel = new HmuxChannel(hmuxSocket, this);
return channel;
}
internal void Free(HmuxChannel hmuxChannel)
{
Trace.TraceInformation("HmuxChannelFactory.free() NYI");
}
internal void Close(HmuxChannel hmuxChannel)
{
Trace.TraceInformation("HmuxChannelFactory.Close(HmuxChannel) NYI");
}